Bottle base



FIG. 1 is a side elevation view of a first side of a bottle showing thepresent invention, the portions shown in phantom forming no portion ofthe ornamental design.

FIG. 2 is a plan view from the bottom of FIG. 1.

FIG. 3 is a perspective view from the bottom left side of FIG. 1; and,

FIG. 4 is a sectional view of the bottle taken along line 4—4 of FIG. 2.

I claim the ornamental design for a bottle base, as shown and described.